Answered

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A shop sign weighing 215 N hangs from the end of auniform 175-N beam as shown in (Figure 1).Find the tension in the supporting wire (at 35.0 degrees)

A Shop Sign Weighing 215 N Hangs From The End Of Auniform 175N Beam As Shown In Figure 1Find The Tension In The Supporting Wire At 350 Degrees class=

Sagot :

In order to find the tension in the wire, let's first decompose it in its vertical and horizontal components:

[tex]\begin{gathered} T_x=T\cdot\cos (35\degree) \\ T_y=T\cdot\sin (35\degree) \end{gathered}[/tex]

Now, since the system is stable, the sum of vertical forces is equal to zero, so we have:

[tex]\begin{gathered} T_y-175-215=0 \\ T_y-390=0 \\ T_y=390 \\ T\cdot\sin (35\degree)=390 \\ T\cdot0.57358=390 \\ T=\frac{390}{0.57358} \\ T=679.94\text{ N} \end{gathered}[/tex]

So the tension in the wire is equal to 679.94 N.

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